package com.mallbook.model.utils;

import java.math.BigInteger;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

/**
 * @Author 宋明松
 * @Version V1.0.0
 * @Date 2022-06-25
 * MD5加密
 */
public class MD5Utils {

    public static String stringToMD5(String plainText) {

        byte[] secretBytes = null;

        try {

            secretBytes = MessageDigest.getInstance("md5").digest(

                    plainText.getBytes());

        } catch (NoSuchAlgorithmException e) {

            throw new RuntimeException("没有这个md5算法！");

        }

        String md5code = new BigInteger(1, secretBytes).toString(16);

        for (int i = 0; i < 32 - md5code.length(); i++) {

            md5code = "0" + md5code;

        }

        return md5code;

    }

}
